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Note 10 - Line of Credit and Long-Term Debt (Detail) - The Company's long-term obligations mature in future years as follows (in thousands): (USD $) In Thousands, unless otherwise specified | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | --- | --- | ---
2013 |  |  |  | $ 73 |  |
2014 |  |  | 73 |  |  |
2015 |  | 73 |  |  |  |
2016 | 24,055 |  |  |  |  |
| $ 24,274 |  |  |  | $ 24,274 | $ 836

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